It is the moon.
Sputnik-I
sputnik
The largest satellite orbiting the Earth is the Moon.
A satellite is not always a robotic module constructed on Earth and launched into orbit. A satellite, in fact, is any object which is orbiting another. The orbiting object is the satellite of whatever it orbits. By now you ought to be able to guess it, but if not, it is the moon.
The only natural satellite orbiting Earth is the moon.
Photos taken of Earth from an orbiting satellite
I saw a satellite orbiting around earth.
The definition of a satellite be it man made or natural is, a body that orbits the parent. The earth is a satellite of the sun, the moon is a satellite of the earth ans so are all the man made ones we put in space.
An "artificial satellite" Something orbiting something else is by definition a satellite. If the satellite is man-made, it thus gains the characteristic of being artificial.
By orbiting the earth about once a month.
Sputnik-I launched October 4, 1957 from the USSR.
At periapsis, that is, when it is closest to Earth in its orbit.